Prove the following statement using mathematical induction. Do not derive it from Theorem 5.2.1 or Theorem 5.2.2. For every integer n 2 1, 1 + 6 + 11 + 16 + ... + (5n - 4) - n(5n - 3) Proof (by mathematical induction): Let P(n) be the equation 1 + 6 + 11 + 16 + ... + (5n - 4) = n(5n - 3) 2 We will show that P(n) is true for every integer n 2 1. Show that P(1) is true: Select P(1) from the choices below. O1=1: (5. 1- 3) 2 O P(1) = 1: (5 -1– 3) 2 O P(1) = 5 - 1 - 4 O1+ (5-1- 4) = 1. (5 - 1 – 3) The selected statement is true because both sides of the equation equal Show that for each integer k > 1, if P(k) is true, then P(k + 1) is true: Let k be any integer with k 2 1, and suppose that P(k) is true. The left-hand side of P(k) is -Select- , and the right-hand side of P(k) is [The inductive hypothesis states that the two sides of P(k) are equal.] After substitution from the inductive hypothesis, the left-hand side of P(k + 1) becomes We must show that P(k + 1) is true. P(k + 1) is the equation 1 + 6 + 11 + 16 + ** + (5(k + 1) - 4) = Hence P(k + 1) is true, which completes the inductive step. Select-- v + (5(k + 1) - 4). When the left-hand and right-hand sides of P(k + 1) are simplified, they both can be shown to equal [Thus both the basis and the inductive steps have been proved, and so the proof by mathematical induction is complete.] Need Help? Read It
Prove the following statement using mathematical induction. Do not derive it from Theorem 5.2.1 or Theorem 5.2.2. For every integer n 2 1, 1 + 6 + 11 + 16 + ... + (5n - 4) - n(5n - 3) Proof (by mathematical induction): Let P(n) be the equation 1 + 6 + 11 + 16 + ... + (5n - 4) = n(5n - 3) 2 We will show that P(n) is true for every integer n 2 1. Show that P(1) is true: Select P(1) from the choices below. O1=1: (5. 1- 3) 2 O P(1) = 1: (5 -1– 3) 2 O P(1) = 5 - 1 - 4 O1+ (5-1- 4) = 1. (5 - 1 – 3) The selected statement is true because both sides of the equation equal Show that for each integer k > 1, if P(k) is true, then P(k + 1) is true: Let k be any integer with k 2 1, and suppose that P(k) is true. The left-hand side of P(k) is -Select- , and the right-hand side of P(k) is [The inductive hypothesis states that the two sides of P(k) are equal.] After substitution from the inductive hypothesis, the left-hand side of P(k + 1) becomes We must show that P(k + 1) is true. P(k + 1) is the equation 1 + 6 + 11 + 16 + ** + (5(k + 1) - 4) = Hence P(k + 1) is true, which completes the inductive step. Select-- v + (5(k + 1) - 4). When the left-hand and right-hand sides of P(k + 1) are simplified, they both can be shown to equal [Thus both the basis and the inductive steps have been proved, and so the proof by mathematical induction is complete.] Need Help? Read It
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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